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# A 147 753 b 3197 5803 c 3729 5271 d 4066 4934 3197

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Unformatted text preview: ents are periodically taken at four different locations on the window. 15 subgroups were observed and each subgroup consists of the four thickness measurements taken across the windows at a particular time with the following results: mean of the means = and the average range of 8.85. Calculate the center line for the X-bar chart. A. 50.05 B. 8.85 C. 4.12 D. 3.34 = 50.05 AACSB: Analytic Bloom's: Application Difficulty: Easy Learning Objective: 4 Topic: X-bar Control Charts 118. A manufacturer of windows produces one type that has a plastic coating. The specification limits for the plastic coating are 30 and 70. From time to time the plastic coating can become uneven. Therefore, in order to keep the coating as even as possible, thickness measurements are periodically taken at four different locations on the window. 15 subgroups were observed and each subgroup consists of the four thickness measurements taken across the windows at a particular time with the following results: mean of the means = = 50.05 and the average range of 8.85. Calculate the center line for the R chart. A. 50.05 B. 8.85 C. 2.21 D. 0.59 AACSB: Analytic Bloom's: Application Difficulty: Easy Learning Objective: 4 Topic: Range Control Charts 1-1754 Chapter 01 - An Introduction to Business Statistics 119. A manufacturer of windows produces one type that has a plastic coating. The specification limits for the plastic coating are 30 and 70. From time to time the plastic coating can become uneven. Therefore, in order to keep the coating as even as possible, thickness measurements are periodically taken at four different locations on the window. 15 subgroups were observed and each subgroup consists of the four thickness measurements taken across the windows at a particular time with the following results: mean of the means = and the average range of 8.85. Calculate the control limits for the X-bar chart. A. (41.2 58.9) B. (48.1 52.0) C. (43.6 56.5) D. (29.9 70.2) LCL = 43.60 UCL = 56.50 50.05 ± (0.729)(8.85) = 43.60, 56.50 AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 4 Topic: X-bar Control Charts 1-1755 = 50.05 Chapter 01 - An Introduction to Business Statistics 120. A manufacturer of windows produces one type that has a plastic coating. The specification limits for the plastic coating are 30 and 70. From time to time the plastic coating can become uneven. Therefore, in order to keep the coating as even as possible, thickness measurements are periodically taken at four different locations on the window. 15 subgroups were observed and each subgroup consists of the four thickness measurements taken across the windows at a particular time with the following results: mean of the means = = 50.05 and the average range of 8.85. Calculate the control limits for the R chart. A. (3.07 14.63) B. (6.57 11.13) C. (0 35.40) D. (0 20.20) LCL = DNE UCL = 20.20 (2.282)(8.85) = 20.20 AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 4 Topic: Range Control Charts 1-1756 Chapter 01 - An Introduction to Business Statistics 121. A manufacturer of windows produces one type that has a plastic coating. The specification limits for the plastic coating are 30 and 70. From time to time the plastic coating can become uneven. Therefore, in order to keep the coating as even as possible, thickness measurements are periodically taken at four different locations on the window. 15 subgroups were observed and each subgroup consists of the four thickness measurements taken across the windows at a particular time with the following results: mean of the means = = 50.05 and the average range of 8.85. Assuming that the process is in statistical control, calculate the natural tolerance limits for the process. A. (45.75 54.35) B. (37.16 62.94) C. (42.40 57.70) D. (47.50 52.60) 37.16, 62.94 50.05 ± 3(8.85/2.059) = 37.16 to 62.94 AACSB: Analytic Bloom's: Application Difficulty: Hard Learning Objective: 6 Topic: Process capability 122. A manufacturer of windows produces one type that has a plastic coating. The specification limits for the plastic coating are 30 and 70. From time to time the plastic coating can become uneven. Therefore, in order to keep the coating as even as possible, thickness measurements are periodically taken at four different locations on the window. 15 subgroups were observed and each subgroup consists of the four thickness measurements taken across the windows at a particular time with the following results: mean of the means = and the average range of 8.85. Is the process capable of meeting the specifications? A. Yes B. No = 50.05 Yes, the process is capable because the natural tolerance limits are within the specifications. AACSB: Analytic Bloom's: Comprehension Difficulty: Medium Learning Objective: 6 Topic: Process capability 1-1757 Chapter 01 - An Introduction to Business Statistics 123. A manufacturer of windows produces one type that has a plastic coating. The specification limits for the plastic coating are 30 and 70. From time to time the plastic coating can become uneven. Therefore, in order to keep the coating as even as possibl...
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